package pro.hdl.servlet;

import cn.hutool.captcha.CaptchaUtil;
import cn.hutool.captcha.LineCaptcha;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebServlet(urlPatterns = "/hdlcode")
public class CodeServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        HttpSession session = req.getSession();
        //创建线段干扰的验证码
        //int width,int height,int codeCount,int lineCount
        LineCaptcha captcha = CaptchaUtil.createLineCaptcha(200,60,4,10);
        //获取验证码的值
        String code = captcha.getCode();
        session.setAttribute("ccc",code);
        //将验证码图片响应输出流客户端
        captcha.write(resp.getOutputStream());
    }
}
